"Insomnia" is a song recorded by British dance group Faithless. Released as the band's second single, it became one of their most successful. It was released in 1995 and became a hit in Dance Charts while peaking at number 27 in the UK in 1995 and number three in 1996. It re-entered the UK charts in 2005 at number 17 after the release of their greatest hits compilation Forever Faithless and was certified Platinum by the BPI in 2015. It was voted by Mixmag readers as the fifth greatest dance record of all time. The main refrain of "Insomnia" is a heavy sample of 1989' "Let Me Love You for Tonight" by UK artist Kariya.